Fire-place heater



2 Sheets-Sheet 1.

(No Model.)

B. F. DUNAWAY.

FIRE PLACE HEATER.

No. 351,025. Patented Oct. 19, 1886.

EZZES L N PETERS, Phowunw m he', waimn mu, D, c'

(No Model.) 2 Sheets-Sheet 2.

E. P. DUNAWAY.

FIRE PLACE HEATER.

Patented Oct. 19, 1886.

fim

ELIJAH F. DUNA\VAY, OF

COVINGTON, KENTUCKY.

FIRE-PLACE HEATER.

SPECIFICATION forming part of Letters Patent No. 351,025, dated October 19, 1886.

Application filed October 23, 1884.

To all whom it may concern.-

Be it known that I, ELIJAH F. DUNAWAY, a citizen of the United States,and a resident of Govington, in the county of Kenton and State of Kentucky, have invented certain new and useful Improvements in Fire Place Heaters, of which the following is a specification.

This invention is an improvement in fireplace grates and heating-stoves.

Its object is to control combustion, prevent smoke, and insure the radiation into the room or chamber of the heat produced by the combustion of the fuel.

XVith these objects in view my invention consists in a peculiar arrangement of revolving firebasket having pivoted gates forming parts of the same upon opposite sides of the axis, whereby fuel may be alternately introduced and the grate given a half-revolution to bring the incandescent fuel upon top.

It consists, also, in a peculiar arrangement of heating-chamber and fireback with means for introducing heated air into the fire-box to promote combustion, and also into the room,

, instead of allowingit to pass through the fine.

It also consists in certain novel details of construction and combination of parts, all of which will be fully understood from the following description of the accompanying drawings, in which "Figure 1 is a front elevation of a fire-place grate provided with my improvements. Fi 2 isa central vertical section of the same. Fig. 3 is an axial section of my improved grate, showing another means of suspending the same. Fig. at is a perspective view of the cap or plate which closes a portion of the chimhey-opening and forms the flue. Fig. 5 isa View of my improved grate or fire basket, taken at right angles to the view shown in Fig. 3, and also showing my preferred means to mount or suspend the grate in place. Fig. (5 is a front elevation of a stove provided with my improvements. Fig. 7 is an elevation of the same with a perforated back cap, shownin vertical section.

or cast as part of it, is the cone-shaped back Serial No. 146,327. (No model.)

B. This back has a flue or thimble, Z),which, when the grate is in place, passes into the opening in the piece 0, Fig. 4. The piece 0 has an upwardlyproj ectiug flange,c,which has an opening to receive theflue b.

The firebasket, Figs. 3 and 5, consists of the back D and the concave-convex grated front The back is preferably corrugated to give it a greater heating-surface, and the center part of the front or grate is permanently secured to it. Upon opposite sides of the center are gates or doors F, which are pivoted in lugsf, secured upon the back D. The pivotbearings are elongated, in order that the gates may be lifted up when the gate is opened, or turned back in the recess in the back D, to allow the hooks f to catch over the rim of back D. The weight of the gate retains it in the open position. hen it is desired to close the gate, it is lifted up to release the catch, and when closed it is held in the closed position by the pivoted latch e, which is turned over the catch f. As shown in Fig. 2, the pivot upon which the fire-basket turns is a tube, G, which has an annular recess at G around it, near the inner end, to engage a perforated plate, I), let into the inner end of back B. The forward end of the tube is secured to the back 1), and is supported by a bracket, g, which rests upon the inner wall of the back B. The tube G communicates with the fire-chamber and the chamber H, which is formed by the back B, fireplace walls, and the plate 0. On the inside of the fire-back is a cap, (I, which is perforated to permit the heated air to enter the fire-chamber in jets, to,1nore completely mingle with the gaseous products generated in the fire-chamber, and thus promote combustion. Air is admitted to the chamber H through a flue, h, which is controlled by a register, h, underneath the 21Sl1-bOX. Thcfront of the grate is provided with folding doors I, which when opened, as seen in Fig. 1, serve the double purpose of radiating-,the heat into the room and protecting the mantel and firefront A. On the center of the bottom plate is an u'pwardly-projeeting lug, 2, back of which the lower front corners of the middle doors slide as they are closed. The doors are held closed by gravitating bolts J. The doors are opened by placing the end of a poker or the keyK in the upper looped end of the bolts J,

raising the bolt. Then as the side door is swung back on its hinges the free end of the center door slides out of engagement with the lug or button 1'. The basket, as shown in Fig.

2, is inserted by inclining the inner end of the tubular pivot downward until the annular notch G around the inner end comes beneath the plate Z) in the back D. Then by letting the basket down until the pivot assumes a to horizontal position and rests on the semicircular bearing of the bracket 9 its weight will prevent its being withdrawn until lifted up.

To provide against any accidental displacement of the revolving fire-basket, 1- form a 1. pivot, e, which passes through a brace, L,

(shown in dotted line, Fig. 1,) which brace extends across the grate and has its ends secured to the front flange of the back B. The pivot c has an angular key-seatto receive the angular end of the key K, by which the grate is revolved upon its axis. In my preferred means of securing the basket in place, as shown in Fig. 5, B conforms to the shape of the fireback D, and a supplemental piece, B", is se- 2 cured to it, making a small chamber, H, be-

tween the cone end of the back piece, B and the back B. The back B has a hub, I)", cast with it to furnish a broad bearing for the tube G, which is the journal upon which the fire- 0' basket revolves. This tube is screwed into the fire-back D, and projects back through a central opening in the back cap, B A bolt, 9, passes through the cap d, and a cap, gflwhich projects over the end of the cap B, and secures 3 5 the parts together. When this form of firebasket is used, the brace L in front of the grate may be dispensed with. The tube G is perforated, as is also the back cap, B, so that heated air may pass through the tube G into the fire-chamber.

In Figs. 6 and 7 I have shown a heatingstove containing my improvements. "This differs in no essential features from the grate heretofore described, except that it has a perforated 5 cap, M, which covers the back B,-making an 5 I back for the purpose, the upper gate is closed.

and latched. The grate is then turned halfa revolution by the key K, bringing the incandescent fuel on top and the fresh fuel below. The fresh fuel in this position will undergo a 6 coking process, and the gases arising pass smoke an through the incandescent fuel on top and receive in their passage a supply of highlyheated oxygen, which combines with them and produces perfect combustion, thus preventing utilizing the products of combustion; I

I do not claim, broadly, a revolving firebasket, nor an arrangement of heating-chambers back of or around the fire-chamber, as both of these features are well known.

What I claim as new, and desire to secure by Letters Patent, is-- 1. The combination, substantially as specified, of the revolving fil'GrbfiSkBt consisting of the back D, front E, and pivoted gates F F, the pivot projecting from the back D, and the double bearings back of the fire-basket for the pivot, to support the fire-basket and admit of its being revolved.

2. In combination with a grate constructed to revolve on horizontal bearings, the back B,

heating-chamber H, inlet h, and hollow pivot G, whereby heated air is introduced into the pose set forth.

3. The combination, with the main frame fire-chamber, substantially as and for thepurof .a fire-place heater having a back, D, and horizontal bearings, of a grate-front, E, se-

cured to said back, and gates F, pivoted upon opposite sides of said horizontal bearings, the said back being provided with recesses, and said gates being pivoted on horizontal pivots, substantially as before set forth.

4. The combination, substantially as specified, of the revolving grate or fire-basket D E, the hollow pivot G,.the gates pivoted upon opposite sides-of the pivot G, the said back D having a perforated cap, d, and the front E being provided with latches to retain the gates F closed when'the firebasket is revolved and the gate is on the bottom.

5. The combination, substantially as specified, of theback B with the back D, cap B, chamber H, the tube G, perforated to receive heated air from chamber H, the caps d and g and bolt 9 to secure the parts together, the front E, and pivoted gates F.

6. In afire-place having a revolving firebasket, such as described, the combination, substantially as specified, of chamber H, having flue h, and register h, and cap 0, with the back B, open at the .cone end, and the hollow pivot G, communicating with the chamber H, and the fire-basket.

7. In a grate revolving on horizontal pivots, as described, the. combination of the back D, having slotted lugs f secured to its flange, and the grate 'E, with the gates F, having pivots to enter said slotted lugs, hooks f to engage the. flange of the back D when the gate is thrown open, and to be engaged by latches e when the gates .are closed, substantially as specified.

8. The combination, with the main frame of a fire-place heater having a back and horizontal bearings, of a front secured to said back, and gates pivoted on horizontal pivots to the front upon opposite sides of the-horizontal bearings, substantially as before set forth.

ELIJAH F. DUN AWAY. Witnesses:

H. O. HUNTEMANN, GEo. J. MURRAY. 

